ui/web/src/composables/Utils.ts

   1 const isUndefined = (value: unknown): boolean => {
   2   return typeof value === 'undefined';
   3 };
   4
   5 export const ifUndefined = <T>(value: T | undefined, isValue: T): T => {
   6   if (isUndefined(value) === true) return isValue;
   7   return value as T;
   8 };
   9
  10 // const isIterable = <T>(obj: T): boolean => {
  11 //   if (obj === null || obj === undefined) {
  12 //     return false;
  13 //   }
  14 //   return typeof (obj as unknown as Iterable<T>)[Symbol.iterator] === 'function';
  15 // };
  16
  17 // const ifNotIterableDo = <T>(obj: T, cb: () => void): void => {
  18 //   if (isIterable(obj) === false) cb();
  19 // };
  20
  21 export const promiseWithTimeout = <T>(
  22   promise: Promise<T>,
  23   timeoutMs: number,
  24   timeoutError: Error,
  25   timeoutCallback: () => void = () => {
  26     /* This is intentional */
  27   },
  28 ): Promise<T> => {
  29   // Create a timeout promise that rejects in timeout milliseconds
  30   const timeoutPromise = new Promise<never>((_, reject) => {
  31     setTimeout(() => {
  32       // FIXME: The original promise state shall be checked
  33       timeoutCallback();
  34       // FIXME: The original promise shall be canceled
  35       reject(timeoutError);
  36     }, timeoutMs);
  37   });
  38
  39   // Returns a race between timeout promise and the passed promise
  40   return Promise.race<T>([promise, timeoutPromise]);
  41 };
  42
  43 // export const compose = <T>(...fns: ((arg: T) => T)[]): ((x: T) => T) => {
  44 //   return (x: T) => fns.reduceRight((y, fn) => fn(y), x);
  45 // };